Language Processors - Section 1 (3)

17.

Indicate which of the following is not true about 4GL?

A.	4GL does not support a high-level of screen interaction
B.	Many database management system packages support 4GLs
C.	A 4GL is a software tool which is written, possibly, in some third generation language
D.	All of the above

Answer: Option A

Explanation:

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18.

Assembly code data base is associated with

A.	a permanent table which lists all key words and special symbols of the language in symbolic form
B.	a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
C.	consists of a full or partial list or the tokens as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
D.	assembly language version of the program which is created by the code generation phase and is input to the assembly phase

Answer: Option D

Explanation:

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19.

A compiler for a high-level language that runs on one machine and produces code for a different machine is called

A.	optimizing compiler
B.	one pass compiler
C.	cross compiler
D.	multipass compiler

Answer: Option C

Explanation:

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20.

Terminal Table

A.	a permanent table which lists all key words and special symbols of the language in symbolic form
B.	a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
C.	consists of a full or partial list of the tokens as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
D.	contains all constants in the program

Answer: Option A

Explanation:

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21.

In analyzing the compilation of PL/I program, the term "Lexical analysis" is associated with

A.	recognition of basic syntactic constructs through reductions
B.	recognition of basic elements and creation of uniform symbols
C.	creation of more optional matrix
D.	use of macro processor to produce more optimal assembly code

Answer: Option B

Explanation:

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22.

In analyzing the compilation of PL/I program, the term "Syntax analysis" is associated with

A.	recognition of basic syntactic constructs through reductions
B.	recognition of basic elements and creation of uniform symbols
C.	creation of more optional matrix
D.	use of macro processor to produce more optimal assembly code

Answer: Option A

Explanation:

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23.

Job Control Language (JCL) statements are Used to

A.	Read the input from the slow-speed card reader to the high-speed magnetic disk
B.	Specify, to the operating system, the beginning and end of a job in a batch
C.	Allocate the CPU to a job
D.	All of the above

Answer: Option B

Explanation:

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24.

Which of the following systems software does the job of merging the records from two flies into one?

A.	Documentation system
B.	Utility program
C.	Networking software
D.	Security software

Answer: Option B

Explanation:

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